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Anyone Seen This?? Dynamic Wheel Weights

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Old Feb 13, 2008 | 08:46 AM
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Default Anyone Seen This?? Dynamic Wheel Weights

I was having a tire test mounted on my wheel for another car (sizing issues, looking for a good setup) and while at the shop I noticed a little display for these dynamic wheel weights. Seems they're a very flexible stick on cylinder with.....as best as I can explain it.....steel shot in varying weights inside, free to move. Seems like an interesting concept. Just wondering if anyone has any experience? This just piqued my curiosity.

www.xactbalance.com

Thoughts?
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Old Feb 13, 2008 | 08:56 AM
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Originally Posted by Fastbird93
I was having a tire test mounted on my wheel for another car (sizing issues, looking for a good setup) and while at the shop I noticed a little display for these dynamic wheel weights. Seems they're a very flexible stick on cylinder with.....as best as I can explain it.....steel shot in varying weights inside, free to move. Seems like an interesting concept. Just wondering if anyone has any experience? This just piqued my curiosity.

www.xactbalance.com

Thoughts?

That is all which is used by Toyota anymore and from what I hear they work much better then the lead weights. And you know lead being lead and the EPA...yada, yada
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Old Feb 13, 2008 | 09:23 AM
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I saw these at the Texas State Fair in 1969.
Theory seems logical, execution seems Rube Goldburg.

DG
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Old Feb 13, 2008 | 09:42 AM
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I have not seen this before, it does look interesting.

Maybe it will be the thing of the future

Thanks,Matt
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Old Feb 13, 2008 | 12:08 PM
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Doesn't look too good to me. I think I'll stick with the stick ons that can be hidden. Those things look like sh--!
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Old Feb 13, 2008 | 01:29 PM
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Originally Posted by tiojames
Doesn't look too good to me. I think I'll stick with the stick ons that can be hidden. Those things look like sh--!
They are almost the same size as a stick on wheel weight, and look almost identical to the same. What's the negativity specifically related to?

Very cool innovation, I'm interested to hear from anyone that's used these.
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Old Feb 13, 2008 | 01:39 PM
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I'll be using them on our Celica within a couple of weeks once I get a new wheel and new tires. If they work out there, the Vette will get the treatment as I've got one wheel that's still out of whack.
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Old Feb 13, 2008 | 02:43 PM
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They had these back in the 70's only they looked like a donut with a plate on it that would sandwich between the wheel and drum/rotor. They worked really well. The only downside to them was that you'd hear them every time you take off. Shew Shew Shew Shew. (how's that for a sound description?)
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Old Feb 13, 2008 | 03:58 PM
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I have heard of them being used a lot on larger truck tires where they continously go out of balance because of aggressive offroad driving.
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Old Feb 13, 2008 | 05:34 PM
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Tod, yeah, that was it; looked like a hoola-hoop. You must be an old Coot too?

For you young jocks, a hoola hoop was..... oh, never mind.

DG
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Old Feb 13, 2008 | 08:01 PM
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ACTUALLY, TODD WAS A BACKUP SINGER TO NANCY SINATRA WHEN SHE DID HER 60s HIT, SUGARTOWN.

THAT'S OLD
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Old Feb 14, 2008 | 12:12 AM
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same theory of adding water to your tires... old 1930's stuff!
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Old Feb 14, 2008 | 01:33 PM
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The weight can move, but it is not obvious as to what force actually makes the weight move to the location that will balance the whole assembly.
Centrifugal force exerts an outward force on the weights, but what force makes the weight move circumferentially to offset an out of balance? It seems like the weight would just spread out evenly along the circumference.
What if the range of variable weight is on the heavy side of the wheel instead of the side it needs to be on to balance? Do you have to do a rough balance to locate the weight band?

Last edited by TEXHAWK0; Feb 14, 2008 at 01:41 PM.
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Old Feb 14, 2008 | 01:57 PM
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How much do they cost ??
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Old Feb 14, 2008 | 05:19 PM
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and did it... MYYYY WAYYYYY..



oh wait.. wrong Sinatra


water doesn't work so well. The pressure changes. Probably worked for you guys in the 30's but cars only went... what 6 mph???
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Old Feb 14, 2008 | 07:08 PM
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Originally Posted by jrprich
How much do they cost ??
An extra $5 per wheel on top of normal balancing charges is what I was told. I figure hey, it's something to check out.
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Old Feb 14, 2008 | 10:07 PM
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Originally Posted by TEXHAWK0
The weight can move, but it is not obvious as to what force actually makes the weight move to the location that will balance the whole assembly.
Centrifugal force exerts an outward force on the weights, but what force makes the weight move circumferentially to offset an out of balance? It seems like the weight would just spread out evenly along the circumference.
What if the range of variable weight is on the heavy side of the wheel instead of the side it needs to be on to balance? Do you have to do a rough balance to locate the weight band?
I had the same questions. The link did nothing to explain how it works. Unless it goes all the way around the wheel, you'd have to have a rough balance first, or put it where you took the old weights OFF. Even then, it seems like the weight would migrate to the already heaviest part of the wheel.
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To Anyone Seen This?? Dynamic Wheel Weights

Old Feb 14, 2008 | 10:34 PM
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From the installation information on their website, you do need to do a "rough balance" first ...

My question is ... so I have all these little ***** in the system, and I accelerate the wheel ... wouldn't all the little weights migrate to the "end" of this system, throwing everything out of balance ..... and on the opposite side .... under heavy braking ... the ***** would move to the other end of this system ....

Sounds like total to me ..... I wouldn't install it .....
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Old Feb 15, 2008 | 02:10 PM
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Don't bring those to any track please!!!

Randy
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Old Feb 15, 2008 | 06:27 PM
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Looks like we might have a item to complement the imfamous HOOD SEAL ! Wait, the hood seal does keep the engine cleaner. . .
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